Platen-shift.



0. ETERMANN.

PLATEN SHIFT.

APPLIUATION FILED sEPT.1s, 1910.

1,121,036. Patented Dec. 15,1914.

lilltilltlhl@ @Teli-ll@ CTT() PETERMANN, OF GROTON, NEW' YORK, ASSIGNOR TO CORONA TYEEVRITER GMPANY, INCORPORATED, A

CORPORATION OF NEW' YORK.

PL ATEN-SHIFT.

Sp clcation et' Letters Patent.

latcnted Dec. 15, 1914.

lie it known that l, O'r'ro llinianviarirz, a citizen ot' the riepublic of Switzerland, and a resident ot' (iroton, count-y o1" 'lfmnpkins and State ot New `i'ork,'have invented certain new and usetul Improvements in llaten-ihi'l'ts. ot which the following is :1 i'ull. clear, and exact desicription.

This inve' tion rel-.ttes more particularly to the platen shifts of visible, loldable type- ".vi'iting machines.

'ille primary ohiect oitl the invention is tc vprovide simple and eliicient means whereby` the platen may be shifted todill'ercnt positions by means located at one side ot the machine, and which means is so constructed that the platen and caiiriagc may he moved into compact relation to another partolf the machine for transportation or tor other purposes. i

.1 lurthcr object ot' the invention is to provide simple and efficient means which will positively hold and limit the movement o'lf the platen in its diti'erent shiftahle positions7 and lo provide means 'for locking the platen in such dilt'erent positions.

`With these and other objects in view. the invention will be hereinafter more particu-- iarly described with reference to the accompanying drawings, which form a part nl' 'this specification, and will then be pointed ont in the claims at the end of the description.

ln the drawings Figurel is a longitudinal afction of a part ot' one form of machine emlmdying my invention. Fig. is a trag mentary sectional plan view. taken on the line ll--H of Fig. 1; and Fig. 3 is a vertically transverse section taken on the line Illu-lll ot Fig. l, the upper part of the machine being removed.

The frame 10 may be of any suitable construction and may have the usual keys forniing a keyboard which are operativelyvv conP nected to the typebars to adapt the same to be forced to priiiting position against the platen l1. The platen is mounted upon a carriage 12 and said carriage is held to move lransverselvv ot' the machine along the support lil. the latter being pivoted at llV to permit the carriage and platen to be shifted into overhanging relation to the keyboard, all of which may be ol' the usual or of any preterreiil construction.

:lhe platen and its support is adapted to move vertically to dilferent positions for the iliilerent characters on the type heads, and said support at opposite sides ot' the inachne is provided with a vertically-extending bar 15 which is held to slide vertically in the post 1G located at the corner of the machinetrame. At one side of the machine and adjacent to the frame are the shift levers 1T 'ind 1S. The shift lever 17 is pivotally held either loosely or otherwise t0 a. transversely-extending rod 1'.) and the rear end ot' said lever is connected to a rod .20 which extends transversely of the machine and serves to join the two hars 15 to adapt the saine to be moved in unison. The outer end of the lever 17 is provided with a key or linger portion 2l to adapt the shift lever 17 to be moved or forced downward in the usual manner, '1n the .iorin of machine shown, the typeheads are adapted to contain three sets of characters, one for the upper case characters, a second for the lower case. characters, and the third for figures and the like. ln Fig. 1; the platen and `parts are shown in the normal position and for the lower case characters, and the'lever 17 is intended to shiit the platen vertically in position for the upper case characters, while the shift lever 18 gves another throw to the platen and is intended :tor the ligures or other characters. This shift lever 18 has a 'hooked part', as 22. to fit about a part of the transverse rod 19 which serves as a pivot for said lever, and this lever has a finger part or key 23 at its outer end and held to the lever 1T so as to have a relative limited movement with respect thereto. As shown, the lever 17 is provided with a slot 2li lo cated adjacent; to the pivot rod 195 through which passes a screw or pin 25eme end of .which is held to the lever 18 so that the lever 17 by means of the slot-and-screw eonnection may have a downward movement for a certain distance without operating the shift lever 18. p

The shift lever 1S is provided with a cam portion or end 2G which is adapted to cngage. a projection or part 27 extending inward and formati as a part of an arm 2S. This arm 2S is iivoted at 29 to the inner side ot the machine iframe and is connected by a spring 30' to the lever 1S, said springbeing fastened at one end to the said arm and its other end being faster-ed to a pro* jection 31 on said lever 18. The lever 18 has a lip or projecting part 32, and this part is adapted to iit over the projection 27 of the arm and the tendency of the spring 30 4is to force the projecting part 27 into contact with the end 26 of the lever 18. At the upper end of the arm 23 are arranged two elements and 34C. As shown, these elements are in the form of screws and said screws pass through an inwardlyprojecting part 34a at the upper end of the arm and through lugs 35 and 36, respectively, which lugs may be forced from the body portion of the arm 28. The screws 33 and are adjustable'and are of relatively diiferent lengths to lpermit different vertical adjustments to be giventhe platen ll, and each. of said screws 1s adapted to engage the inturn'ed l end 37 of the bracket or plate 38 projecting downward from the platen support, the said bracket being of any suitable form and ar ranged in any desired way to adapt 'the same to engage the screws according to the position of the 'arm 28.

As will be seen when the parts are in the position shown and the shift lever 17 operated, the bars 15 connected to the platen support may be. moved to their maximum throw and until the inturned end 37 of the bracket 38 engages the screw or element 34 which will limit the upward movement of the platen. and support. vVhen the lever le is depressed, this lever will throw the arm 28 inward on its pivot until the screw 33 is in the path of movement of 'the inturned end 37 of the bracket 38 and at the same time that the lever is moved downward, it -will force the bars`15 upward to shift the platen and its support until the inturned end 37 engages the lower end of the screw 33, the position of the platen being. determined by the adjustment of the said screws. By placing the two shift levers on the same side of the machine a number of the connecting parts may be dispensed with and a very simple construction provided and which also serves as a more convenient means for shifting the platen.

To lock the shift levers independently of each other to hold the platen in either of its shifted positions so that the same character of type may be employed without constantly using the shift key, l provide each shift lever with a hook or lip 39 forming a recess l0 under each lever and these recesses are adapted to have the end il of the lever 4Q enter the same and prevent their upward movement until said lever is released. The lever liis pivoted at 4l-3 to the inner surface of one side lof the machine frame and has two arms L14 each provided with an eX- tended part 45. These arms 44, form a bifurcated portion of the lever and the outwardly-extending parts 45 serve to engage the upper edge of the side of the frame to limit the movement of the lever 4:2 so that meines the said lever in one position. is disengaged and out of the path. of movement of the shift levers while in its other position the 'j end 4l will enter the recess 4:0 of one of the shift levers according to which one has been forced downward, the said lever being restored to its normal position by the weight of the carriage or platen or by one or more springs, if desired. A projection or lip i6 may be 'arranged between the arms 44: and this lip is adapted to enter a recess or slotted portion e7 of the lever 17 to prevent the same from being shifted to elevate the platen.

From the foregoing, it will be seen that simple and efhcient means is provided whereby the platen may be shifted verti cally to different adjustments; and that simple and eilicient means is provided for locking the shift levers and consequently the platen in their adjusted positions.

Having thus described my invention,

claim as new and desire to secure by Letters Patentzl. In a typewriting machine, the combination with a vertically movable support, of a platen mounted on said support, two shift levers arranged in close relation to each other on the same side of the machine and pivotally held adjacent to one side ofv the frame, abracket carried by the adjustable support, a pivoted arm adapted to engagethe bracket when moved by one of theshift levers to limit the upward movement of the arm, and means movable with the other shift lever adapted to force the arm to permit another movement of the bracket and thereby the platen and support.

3: ln a typewriting machine, the combination with a support, of a platen mounted on the support, two shift levers having relatively different movements for adjusti ing' the platen and support to different degrees, the said levers being arranged in close relation and pivotally held adjacent to one side of the frame, a pivoted stop arm adapted to'engage a part movable with the supf port in its normal position, and means' whereby one of the shift levers only is adapted to force the arm to limit the shift movement of the platen and support and to a di'erent degree than when in its normal position.

4. ln a tvpewritinpr machine, the combination with a support, ot' a platen mounted on the support. two shitt Alevers having relatively dillerent movements for adjusting the platen and support to dili'erent degrees, the said levers beine' arranged in close relation and pivotally held adjacent to one side of the frame, and a verticallyy arranged and pivoted arm adapted to limit the shitting' .moven'ients of the platen according to the position ot' said a rm.

.ln a typewritmg' machine7 the combination with a support, ot' a p laten mount- .ed on the support, two shift levers arranged in close relation and pivotally held adjacent to one side of the machine trame plor adj Listing the platen and support, a stop carried b v the adjustable support and fixed thereto. a movable. arm adapted to engage the stop and to limit the movement ot' the same. and means movable with one oit die shift levers, adapted to 'loree'the arm to permit a. less movement ol the stop and thereby the platen and sur port.

t. ln a typewriting machine, the combination with a support1 ot" a. platen mounted on the support, two shit't levers arranged in close relation and pivotally held to have a relative movement with respect to cach other adjacent to one side ot' the machine frame l'or adjusting` the platen and support, a stop carried by the adjustable support and fixed thereto. a movable arm adapted to engage. the stop and to limit the movement olf the same.` and a projection on. the arm engaged b v one. ot 'the shift levers to force the arm to permit a less movement of the stopand therel'rv the platen and support.

l'. .ln a. typevvriting' machine, the eombination with a support7 of a. platen mounted on the support, two shil't levers for adjusting the platen and so connected as to have independent movements to adjust the support and platen to ditl'erentpositions, slidine'lv held bars connected to the support. transverse rodconnectingT the bars and held to one end o'l one ot the shift levers. a pivoted arm provided with two elen'ients o'l" relatively diilerent distances Yfrom the pivot, said arm ha ving a. projection adapted to be engaged by the second lever, a spring normally forcing the arm toward one o'li the levers to cause the projecting part to be engaged bv the end ot' said second lever. and a bracket carried by the support and adapt ed to engage the elements ot the arm to limit the movement ot said bracket and sup port according; to which shift lever .is desitions. slidinglv held bars connected to the support. a transverse rod eonnectingthebars and held to one end ot one ot the shijlft levers, a pivoted al'm provided with two elements ol: relatively lill'erent distances 'from the pivot, said arm having' a projection adapted to be engaged b v the second lever. and a bracket married by the support and adapted to engage the elements ot' tl f arm to'limit the movement ot" said bracket and support :uzcordinef to which shift lever is depressed.

i). ln. ay tvpewriting machine, the com bination with a support, otn a platen mounted on the support, two shift levers lor adjusting the platen and so connected 'as to have independent movements to adjust the support and platen to ditlerent positions, slidinglvheld bars connected to the support.y a transverse rod connectingl the bars and held to one end ol one ot' the shi't't levers, a` pivoted arm 'provided with two adjust able elements ole relatively ditlerent distances from the pivot, said arm having a projection adapted to be engaged by the sec# ond lever, a spring' normally forcing' the arm toward one olthe levers to cause the project-ing.; part to he engaged by the end of the said second lever. and means carried by the support and adapted to engage the elements o'l the arm lo limit the movement ot said braclv'et and support according to which shiilt lever is depressed. j

lt). ln a typt-writing machine, the combinalum with a` support, of a. platen mounted on the support. two shilt levers for adjusting the platen and so connected as to have independent movements ilo adjust the support and platen to ditlerent positions, slidinglv lield bars connected to the sup port. a transverse rod connecting' the bars a nd held to one end of one oit' the shit't levers. a movable arm having' a projeclion adapted. to be engaged by the second lever, and a bracket carried by the support and adapted to engage the arm to limit the movement ot said bracket and support :ufcordinhr to which shill lever is depressed.

l1. ln a typewrit'nrnr machine, the combination with a movable support, ot' a platen mounted on said support. two shilt levers arranged in close` relation to ach other on the. same side ol [he machine for moving the support and platen to dillerent positions. a pendent bracket movable with the support, and a` sine'le movable element Living' dit'- 'lerent positions and adapted to engage' the bracket to limit the shifting' movement o't' the platen.

l2. ln a tvpevvritiim; machine. the combination with a` mo"able support. ot a platen mounted on said support. two relati'v'ely movable levers located :uljaeent to each other .and so connected .is to have independent movements. and a vertica'lv arranji'cd single element having 'lill'crent posination with a vertically movable support, of a platen mounted on said support, two rela.- tively movable levers located adjacent to each other and havinga ioiiiao.id slot connection so as to have independent movements, and vertically arranged single pivoted means whereby the levers may shift the platen to different distances.

lll. The combination with a vertically adjustable support and means for moving the same, of a platen mounted on said support, an arm pivoted to a part of the machine and' provided with a projecting portion having two adjusting screws therein in relatively diderent ,positions and adapted to serve as stops for the support,land two relatively movable shift levers located adjacent to each other and adapted to impart relatively different vertical movements to the support. l

l5. rlhe combination with a vertically adjustable support and means for moving the same, of a platen mounted on said support, an arm pivoted to a part of the machine and provided with two adjusting ser ws therein in relatively different positions and adapted to serve as stops for the support, and two relatively movable shift levers located adj av cent to the frame and connected together and adaptedto impart different movements to the support.

16. The combination with a support, of a platen mounted on said support, a pivoted arm having means adapted to engage a part of the support to limit its movement, a shift lever connected to the support for elevating the same, a second lever located adjacent to the first-mentioned lever and connected. thereto and having` a cam end-adapted to engage a part of the arm to shift its position, and a spring connecting the arm and said second lever tending normally to force the arm and said lever together,

l?, rEhe combination with a support, of a platen mounted on said support, a pivoted arm having means adapted to engage a part of the support to limit its movement, a shift lever connected to the support for elevating the same, and a second lever located adjacent to the first-mentioned lever and connected thereto and having a cam end. adapted to engage a part of the arm to shift its position.

The combination with a support, of a platen mounted on said support, a pivoted arm havingr means adapted to engage a part of the support to limit its movement, a

@oplos of this patent may be obtained im 13. ln a typewriting,` machine, the combi- Llanos@ shift lever connected to the support for shifting the same, and a second lever locatedadjacent to the iirstnientioned lever and connected thereto and adapted to engage a part of the arm to shift its position.

19. The combination with a vertically movable support, of a platen mounted on said support, two shift levers operatively connected to the support, means whereby the support may be limited in its vertical adjustments, said levers being` provided with a lip and a lip, and a pivoted lever having, an end adapted to engage either of the shift levers and provided with a bifurcated handle porn tion, the arms of which are provided with an overhanging portion adapted to engage a part of the machine frame to limit the movement thereof.

20. The combination with a vertically movable support, of a platen mounted on said support, two shift levers operatively connected to the support, means whereby the support may be limited in its adjust ments, said lip and a recessed portion adjacent to said lip, and a pivoted lever having,` means adapted to engage the recess of either of the shift levers and provided with abifurcated han dle portion, the arms of which are provided with an overhanging. portion adapted to engage a part of thelmachine frame to limit the movement thereof.

21. The combination with a vertically movable support, of a platen mounted on said support, a frame, two shift levers operatively connected to the support, means whereby the 'support may be limited in its adjustments, and a single pivoted lever entirely independent of the shifting means and having a movement limited in two diections by its engagement with the frame and provided with means to engage the shift levers one at a time and lock said levers against movement.

2Q. The combination with a vertically movable support, of a platen mounted on said support, two shift levers, operatively connected to the support, means whereby the support may be limited in its adjustments, said levers being provided with recessed portions, and a pivoted lever having a projecting lip to engage one of the levers and an end adapted to engage either of the shift levers.

This specification signed and witnessed this 12th day of September A. D. 1910,

` GTT@ PETERMANN.

. Witnesses:

LAURENCE J. Concise, BERN Conesa.

five ceniza each, by adresslng the Commissioner of Eatents, Washington, tt" Y recessed portion adjacent to said levers being provided withv a 

